For perpendicular lines, m1m2 = -1 or m2 = -1/m1; where m1 and m2 are the slopes of the lines.
Here line 1 is 3x - 7y = 42
7y = 3x - 42
y = 3/7 x - 6; Hence m1 = 3/7
m2 = -1/(3/7) = -7/3
Required equation y - y1 = m2(x - x1)
y - (-8) = -7/3(x - (-3))
y + 8 = -7/3(x + 3)
y + 8 = -7/3 x - 7
y = -7/3 x - 7 - 8
y = -7/3 x - 15
Answer:
The weighted mean of the number of t-shirts sold per week is 5.6.
Step-by-step explanation:
Given : The data below represents the number of T-shirts sold per week by a student who started his own online t-shirt business.
T-Shirt Sold per Week() Frequency()
2 1
4 4
6 7
8 3
To find : The weighted mean of the number of t-shirts sold per week ?
Solution :
The formula of weighted mean is
Substituting the values in the formula,
Therefore, The weighted mean of the number of t-shirts sold per week is 5.6.
Answer:
The answer is D. Variable. The "letters after the numbers" are always variables. A coefficient is the number that the variable is being multiplied by. An exponent would be something like this: with the 2 being the exponent. A binomial is an algebraic expression of the sum or the difference of two terms.
Answer:
Step-by-step explanation:
Marked price = $36.00
Sales tax = 7%
<h3><u>Sales tax in $:</u></h3>
= 7% of marked price
= 7% of $36 [<u>Key</u>: "of" means "to multiply"]
= 7/100 * 36
= 0.07 * 36
= $2.52
<h3><u>Selling price:</u></h3>
= Marked price + sales tax
= $36 + $2.52
= $38.52
Answer
Graph?
Step-by-step explanation: